DE102015008873A1 - Filter element with a hollow cylindrical filter medium body and filter device - Google Patents

Filter element with a hollow cylindrical filter medium body and filter device

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Publication number
DE102015008873A1
DE102015008873A1 DE102015008873.4A DE102015008873A DE102015008873A1 DE 102015008873 A1 DE102015008873 A1 DE 102015008873A1 DE 102015008873 A DE102015008873 A DE 102015008873A DE 102015008873 A1 DE102015008873 A1 DE 102015008873A1
Authority
DE
Germany
Prior art keywords
filter
dome
support
supporting
housing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DE102015008873.4A
Other languages
German (de)
Inventor
Andreas Wildermuth
Günter Jokschas
Oliver Glück
Marco Faißt
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mann and Hummel GmbH
Original Assignee
Mann and Hummel GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE102014011392.2 priority Critical
Priority to DE102014011392 priority
Application filed by Mann and Hummel GmbH filed Critical Mann and Hummel GmbH
Priority to DE102015008873.4A priority patent/DE102015008873A1/en
Publication of DE102015008873A1 publication Critical patent/DE102015008873A1/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor
    • B01D29/11Other filters with filtering elements stationary during filtration, e.g. pressure or suction filters, or filtering elements therefor with bag, cage, hose, tube, sleeve or like filtering elements
    • B01D29/13Supported filter elements
    • B01D29/15Supported filter elements arranged for inward flow filtration
    • B01D29/21Supported filter elements arranged for inward flow filtration with corrugated, folded or wound sheets
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/14Safety devices specially adapted for filtration; Devices for indicating clogging
    • B01D35/153Anti-leakage or anti-return valves
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D35/00Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
    • B01D35/16Cleaning-out devices, e.g. for removing the cake from the filter casing or for evacuating the last remnants of liquid
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/04Supports for the filtering elements
    • B01D2201/0415Details of supporting structures
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/29Filter cartridge constructions
    • B01D2201/291End caps
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/30Filter housing constructions
    • B01D2201/301Details of removable closures, lids, caps, filter heads
    • B01D2201/305Snap, latch or clip connecting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/40Special measures for connecting different parts of the filter
    • B01D2201/4015Bayonet connecting means
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/40Special measures for connecting different parts of the filter
    • B01D2201/4046Means for avoiding false mounting of different parts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D2201/00Details relating to filtering apparatus
    • B01D2201/40Special measures for connecting different parts of the filter
    • B01D2201/4084Snap or Seeger ring connecting means

Abstract

A filter element has a hollow-cylindrical filter medium body, on the inside of which a support frame is arranged, which support is at least one mounting rib projecting radially inwards relative to the support frame.

Description

  • Technical area
  • The invention relates to a filter element with a hollow cylindrical, radially flow-through filter medium body according to the preamble of claim 1, and to a filter device with a filter element, a filter housing and a housing cover. The filter element can be used for cleaning fluids. Preferably, the fluid is a liquid, for example fuel or oil.
  • State of the art
  • Are known hollow cylindrical filter elements which are used in liquid filters, for example, for oil filtration, and have a radially from the outside to be flowed through the filter medium body. In the cylindrical interior is a scaffold, which gives the existing of a nonwoven or paper material filter media body stability. At the end faces of the filter medium body are end plates, the cylindrical interior is the clean side, from which the cleaned fluid is discharged axially. Such a filter element is used for example in the EP 1 702 663 A1 described.
  • The filter element is inserted into a filter housing, filter element and filter housing together form a filter device. The filter housing is provided with connections for the supply of the raw fluid and the discharge of the clean fluid. For attachment, the filter element can be inserted into a cup-shaped lid, which is placed on the housing and to connect with this via suitable fastening devices. For example, the lid can be screwed to the filter housing.
  • Disclosure of the invention
  • The invention has for its object to perform a hollow cylindrical filter element with simple measures so that an unambiguous assignment to a filter housing and accidental insertion of a non-matching filter element is excluded in a filter housing.
  • This object is achieved with the features of claim 1. The dependent claims indicate expedient developments.
  • The filter element according to the invention has a hollow cylindrical filter medium body, which is traversed by a fluid in the radial direction - usually radially from outside to inside. The filter element can be used for a filter device in which the filter element is inserted into an associated filter housing. The filter device is, for example, a liquid filter such as an oil filter or a fuel filter. But it is also an application for gas filtration into consideration.
  • On the inside of the hollow cylindrical filter medium body, a support frame is arranged, which serves to support and improve the stability of the filter medium body. The filter medium body is made of, for example, a nonwoven or paper material, or mixed fibers such as cellulose and polyester, and may have a wrinkle shape. The scaffold is preferably made of a plastic material.
  • The interior in the filter medium body is cylindrical, accordingly, the support frame arranged on the inside has the shape of a hollow cylinder.
  • The support frame is in the filter element according to the invention carrier at least one radially inwardly projecting Einbaurippe, the end face forms a support surface for a Abstützdom, which projects axially into the filter medium body. The support dome is arranged on the housing side and preferably extends coaxially to the filter element, wherein in the case of a non-matching filter element, the support dome comes into contact with the end face of the mounting dowel, which is supported on the support dome. If the support dome and the filter element do not fit together, a correct installation of the filter element in the filter housing is excluded. The radially inner mounting rib thus ensures that only a matching filter element can be placed in the filter housing.
  • The mounting rib projects radially inwards beyond the support frame and forms the radially furthest inwardly projecting component on the support frame. Furthermore, the mounting rib extends further radially inward than a boundary of the opening in the end plate, through which the support dome can protrude into the filter element. A correct installation of the filter element in the associated filter housing is possible when either waives a support dome on the side of the filter housing or the support dome is adapted to the corresponding filter element. If, on the other hand, there is a support dome in the filter housing to which the filter element is not adapted, a correct installation of the filter element is not possible.
  • For reasons of symmetry, it may be expedient to provide a plurality of mounting ribs on the support frame, for example, two diametrically opposite mounting ribs, each opposite extend radially inward of the scaffold. In order to influence the flow conditions in the interior of the filter element as little as possible, it may be expedient that the mounting rib or mounting ribs extend radially only slightly inwards, for example based on the inner diameter of the interior by a maximum of 25% or a maximum of 20% , The radial wall thickness of the scaffold is smaller than the radial extent of the mounting rib; For example, the mounting rib extends radially inwardly at least twice the wall thickness of the scaffold, but not more than fivefold, for example.
  • Optionally, more than two mounting ribs are arranged on the inside of the scaffold, for example, distributed over the circumference three or four mounting ribs.
  • According to a further advantageous embodiment, the mounting rib is made in one piece with the scaffold. The scaffold is for example designed as a plastic injection-molded component, so that the mounting rib is made by injection molding.
  • According to a further expedient embodiment, the support frame has a plurality of longitudinal struts extending in the axial direction and circumferential struts which connect the longitudinal struts, wherein flow openings for the passage of the fluid to be cleaned are formed between the longitudinal struts and the circumferential struts. The mounting rib is suitably located on a longitudinal strut, whereby the free cross-sectional opening of the adjacent passage openings is not affected or only in a small way.
  • According to a further expedient embodiment, in each case an end disk is located on at least one end face of the filter medium body, preferably on both opposite end faces. At least one end plate is a carrier of a sealing ring, which separates the clean from the raw side in the installed state of the filter element. The sealing ring is located at the end-disc-side opening of the interior in the filter element and advantageously engages in the installed position in a drain opening in the filter housing, which is closed when inserted filter element of the sealing ring, but is exposed with the removal of the filter element and forms a discharge opening for fluid.
  • The sealing ring has, according to a preferred embodiment, both on its outer side and on its inner side in each case at least one circumferential sealing groove, optionally on the outer side and the inner side two axially spaced, circumferential sealing grooves. With the axial removal of the filter element from its sealing seat in the installed position in the filter housing, the sealing ring is lifted out of the drain opening in the housing, wherein the sealing ring inside first still rests against a nozzle in the housing, whereas the sealing ring outside is exposed and the drain opening releases. This makes it possible for the raw fluid in the filter housing to be able to flow out via the drain opening, while the interior in the filter element, which forms the clean side and takes up clean fluid, initially remains closed. Only with the complete removal of the filter element from the filter housing and the interior is released in the filter element, so that the pure fluid therein can also flow through the drain opening.
  • It may be expedient to form the sealing ring in one piece with the end plate on the filter element.
  • The filter device comprises the filter element and a filter housing and a cup-shaped housing cover, in which the filter element is accommodated and which is connected via a connecting device with the filter housing. The connecting device is designed, for example, as a screw connection, formed by mating threads on the filter housing and on the cup-shaped housing cover into which the filter element is inserted. The housing cover is screwed with its thread on the associated thread on the filter housing. As an alternative to a screw connection, the connecting device can also be designed mechanically in some other way, for example as a snap hook or as a clip.
  • Another aspect of the invention relates to a filter device with a hollow cylindrical filter element having a radially permeable filter medium body with a support frame on the inside. The filter device includes a filter housing, in which the filter element can be used, wherein in the filter housing a support dome is arranged, which protrudes when the filter element is mounted or inserted into the interior of the filter element. The filter element is received in a cup-shaped housing cover, which is connected via a connecting device, such as a screw, with the filter housing. The Abstützdom ensures that only filter elements can be used in the filter housing, which are equipped either without radially inwardly projecting mounting ribs in the scaffold or with adapted mounting ribs. This allows a clear assignment of the appropriate filter element to the filter housing, the accidental installation of a non-matching filter element is excluded.
  • The support dome advantageously sits on a discharge nozzle in the filter housing, to which the filter element is aligned coaxially. If the filter element does not match the support dome, the end edge of the support dome bears against the support surface of the installation dowel, so that the filter element can not reach its axial installation position. On the other hand, if filter element and filter housing coincide with the supporting dome, the supporting dome projects so far into the supporting frame or the interior in the filter element until the facing end disk or sealing ring on the filter element has reached its installation position. At the same time, a firm connection between the pot-shaped lid, which accommodates the filter element, and the filter housing is provided via the connecting device.
  • A further advantageous embodiment relates to a modular system with two filter devices each having a filter element, wherein the first filter element has at least one mounting rib on the inner support frame and is housed in the filter housing without a support dome, whereas the second filter element has no mounting ribs, but in the filter housing is recorded with a support dome. There are thus two differently configured filter elements are used: a first filter element with Einbaurippe and a second filter element without Einbaurippe. The filter elements may optionally differ in size, for example, have a different axial length with the same inner and outer diameter.
  • The support dome, which protrudes into the central opening in the end plate, has a wall which is formed as a lattice structure. The lattice structure is constructed for example of longitudinal and circumferential struts and has a plurality of flow openings, which allow a radial flow through the fluid, which is guided through the filter element. This ensures that the support dome for the fluid is not a flow obstacle.
  • If appropriate, the lattice structure of the support dome is adapted to the lattice structure of the support structure in the filter element, so that the longitudinal and circumferential struts of the support dome and the support structure lie on one another.
  • According to yet another expedient embodiment, at least one counter-support element, which corresponds to the end face of the installation rib on the inside of the support frame, is located on an end face of the support dome. The Gegenabstützelement is formed, for example, as a support incision into which projects the end face of the mounting rib. Such a support incision is formed, for example, by two teeth arranged adjacent to one another on the support dome, optionally a circumferential sprocket with a plurality of circumferentially extending teeth being arranged in the abutment dome and a support incision is formed between each two adjacent teeth, which forms a counter support to an installation rib forms. The support incision can be adapted to the geometry of the mounting rib, so that only matching mounting ribs and Abstützdome can be joined together. It may be expedient to adapt the number of mounting ribs on the inner side of the support frame to the number of Gegenabstützelemente, in particular the Abstützeinschnitte between adjacent teeth. In an alternative embodiment, the scaffold has a smaller number of mounting ribs as Gegenabstützelemente on Abstützdom are available.
  • The end faces of the mounting ribs can be part of a circumferential ring gear on the support frame inside, which engages in the ring gear on the support dome. The end faces of the mounting ribs engage in the supporting incisions between the teeth of the ring gear on the support dome. Conversely, the tooth tips of the ring gear protrude on the support dome in the spaces between the mounting ribs of the ring gear on the support frame inside.
  • During axial merging of the filter element and the support dome, the situation may arise that the end face of the mounting rib or mounting ribs strike the tips of the teeth instead of the intermediate support cuts. In this case, a slight relative rotation between the filter element and the support dome is sufficient to ensure that the mounting ribs engage in the support cuts between the teeth. The engagement of the mounting ribs in the support incisions is supported by oblique flanks on the teeth, which extend at an angle to the longitudinal axis, which is also the relative axis of rotation.
  • According to a further expedient embodiment, the support dome comprises a base portion which is the carrier of the at least one counter-support element, and an axially adjoining the base portion guide portion which is in the installed state to contact the mounting rib and is disposed radially within the Gegenabstützelementes. The guide portion provides for improved guidance and increased contact area between the scaffold in the filter element and the support dome. As a result, in particular a tilting of the filter element is avoided relative to a housing longitudinal axis. The guide portion has a smaller outer diameter than the base portion, which in addition to the guide portion and carrier of the at least one Gegenabstützelementes. Due to the smaller outer diameter, the guide portion is located radially within the Gegenabstützelementes. The Gegenabstützelement or laterally delimiting walls of the Gegenabstützelementes extend in the axial direction at least over a partial length of the guide portion.
  • The base portion and the guide portion are advantageously each rotationally symmetrical. The base portion is preferably cylindrical. The guide section with reduced outer diameter may also be cylindrical or optionally also conical, wherein in the latter case the guide section tapers towards its free end face.
  • According to a further expedient embodiment, the axially extended guide section has a lattice structure with axial struts, which, viewed over the circumference, extend in the amount of the counter-support elements which are arranged on an end face of the base section. The Gegenabstützelemente are executed, for example, as a support incisions between two teeth of a revolving sprocket, wherein the axial struts of the guide portion are arranged at the level of Absteutinschnitte. In installation position, one or more mounting ribs on the inside of the support frame of the filter element protrude into one or more support incisions, wherein the axial struts of the guide portion lie directly on the inside of the mounting ribs and radially support them.
  • According to a further expedient embodiment, the axial length of the guide section is at least half the axial length of the base section. This aspect ratio ensures that the guide portion has a sufficiently large length to ensure the desired guidance and support, in particular at one or more mounting ribs on the inside of the scaffold.
  • According to a further expedient embodiment, latching elements for latching to a filter housing are located on an end face of the support dome, in particular on the side of the support dome opposite the counter support elements. For example, there may be a plurality of, for example four, such latching elements distributed over the circumference.
  • Brief description of the drawings
  • Further advantages and expedient embodiments can be taken from the further claims, the description of the figures and the drawings. Show it:
  • 1 in a perspective sectional view of a hollow cylindrical filter element with a radially to be flowed through the filter medium body and a support frame on the inside, wherein the support frame two diametrically opposed, radially inwardly projecting mounting ribs are arranged,
  • 2 a section along the filter element according to 1 .
  • 3 a filter device with a filter element according to the 1 and 2 in a cup-shaped housing cover on a filter housing with a housing-side support dome, which is supported on frontal support surfaces of the mounting ribs and prevents the mounting of the filter element,
  • 4 a filter device with a filter element according to the 1 and 2 in installation position in a filter housing without supporting dome,
  • 5 a filter device with an alternatively designed filter element without mounting ribs, with a projecting into the interior of the filter element, housing-side support dome,
  • 6 a perspective view of a support dome,
  • 7 a section through a filter device with a projecting into the interior of the filter element Abstützdom according to 6 .
  • 8th an enlarged view of the filter device according to 7 with the supporting dome projecting into the filter element,
  • 9 a section transverse to the longitudinal axis through the filter device according to 7 respectively. 8th .
  • 10 a section through an inoperable filter device with a filter element according to 1 and 2 and a housing-side Abstützdom according to 6 ,
  • In the figures, the same components are provided with the same reference numerals.
  • Embodiment (s) of the invention
  • In the 1 and 2 is a filter element 1 shown in a hollow cylindrical design, which is preferably used for liquid filtration, in particular as an oil filter or as a fuel filter. The filter element 1 has a hollow cylindrical Filter medium body 2 on, which is executed in fold form and consists of a fleece or paper material. The filter media body 2 is traversed radially from outside to inside of the fluid to be cleaned, the interior 3 forms the clean side, from which the purified fluid is discharged axially.
  • On the inside of the filter media body 2 is the interior 3 lining scaffold 4 , which gives the filter medium body additional stability. The scaffold 4 , which consists of plastic, has axially extending longitudinal struts and circumferentially extending circumferential struts, which connect the longitudinal struts, whereby a plurality of flow openings between the longitudinal and circumferential struts in the scaffold 4 are formed, via which the fluid in the interior 3 can flow in.
  • In one piece with the scaffold 4 are two mounting ribs 5 formed, which are arranged diametrically opposite each other on the support frame inside and extend radially further inward than the other components of the support structure. The two mounting ribs 5 each run along a longitudinal strut of the scaffold 4 , Every installation trim 5 has a smaller axial length than the filter element 1 on and ends in each case with axial distance to the end faces of the filter element 1 ,
  • The front sides of the mounting ribs 5 each form a support surface 6 , which serves to support itself in case of incorrect installation in a filter housing on a stop which is formed in the filter housing and should prevent the installation of a non-matching filter element. In this case, a complete axial insertion of the filter element 1 in the filter housing not possible, so that the wrong installation is obvious and can be corrected by the fitter.
  • At each end face is located on the filter medium body 2 an end plate 7 respectively. 8th , each with a central opening 70 . 80 for the fluid. In one piece with the end disk 7 . 8th each is a sealing ring 9 respectively. 10 formed around the centric opening 70 . 80 in the filter element 1 is laid. The sealing ring 9 has both on its inner side and on its outer side in each case two axially spaced, circumferential sealing grooves, which allow a compression of the sealing ring and support the sealing function. The opening 80 in the upper end plate is closed during operation, for example, a bypass valve in the opening 80 can be used. About the opening 70 in the lower end disc 7 is the purified fluid from the interior of the filter element 1 dischargeable.
  • 3 shows an inoperable filter device 11 for liquid filtration with the filter element 1 in a pot-shaped housing cover 13 and a filter housing 12 , In 3 is a non-matching filter element 1 in cup-shaped housing cover 13 recorded, with the correct installation of the filter element 1 in the filter housing 12 not possible. The frontal support surfaces 6 at the mounting ribs 5 are supported on the front edge of a support dome 14 from what an axial insertion of the filter element 1 including the housing cover 13 prevented until the final installation position. The support dome 14 sits on a housing-side drain neck 15 on, over which the purified fluid from the interior of the filter element 1 flows axially. The support dome 14 However, prevents the complete axial insertion of the filter element 1 in the filter housing 12 so that too the sealing ring 9 at the end disc 7 not in engagement with a drain opening 17 can reach, the ring-shaped drain pipe 15 encloses and normally when removing the filter element in use 1 for draining the raw fluid in the housing.
  • On the outside of the cup-shaped housing cover 13 located adjacent to the front edge of an external thread, the part of a screw 16 is and in the normal case - when inserting a correctly selected, provided for this filter element - with a corresponding internal thread on the filter housing 12 is screwed. However, since the support dome 14 on the support surface 6 the mounting ribs 5 is applied and a correct insertion of the filter element 1 in the filter housing 12 is prevented, a screw connection via the threads on the housing cover 13 and on the filter housing 12 not possible. A commissioning of the filter device 11 with the mismatched filter element 1 is therefore not possible.
  • In 4 is the filter element 1 in a correct mounting position in a filter housing 12 a filter device 11 shown. The installation takes place without supporting dome, the frontal support surfaces 6 the mounting ribs 5 are not attached to any housing-side component. This allows the drain neck 15 axially in the interior or the scaffold 4 protrudes, also is the sealing ring 9 in the revolving, the drain neck 15 encompassing drain opening 17 , The screw connection 16 is made, the external thread on the cup-shaped housing cover 13 engages in an associated internal thread on the filter housing 12 one.
  • In 5 is a filter element in an alternative design in installation position in the filter housing 12 the filter device 11 shown. The filter element 1 has over the previous embodiments, a greater axial length, also are no radially inwardly projecting mounting ribs on the scaffold 4 intended. In the filter housing there is a support dome 14 , on the central outlet 15 is placed in the filter housing and in the mounted position in the interior or the scaffold 4 of the filter element 1 protrudes. The sealing ring 9 at the end disc 7 protrudes into the drain opening 17 and closes these. The screw connection 16 between the pot-shaped housing cover 13 and the filter housing 12 is closed, the corresponding threads on the housing cover and the filter housing interlock.
  • In 6 is a support dome 14 shown in a further embodiment. The support dome 14 has a cylindrical base section 18 and one axially to the base section 18 subsequent guide section 19 on, the opposite to the base section 18 has a smaller outer diameter. Also the leadership section 19 can be cylindrical or optionally provided with a slight conicity, so that the guide portion 19 slightly tapered towards its free end. Both the basic section 18 as well as the leadership section 19 have a grid structure with longitudinal struts and circumferential struts, between which flow openings for the radially passing fluid are formed.
  • At one end face of the base section 18 there is a rotating sprocket 20 with a plurality of evenly distributed over the circumference arranged teeth 21 , wherein between each two adjacent teeth 21 a support incision 22 is formed, which receives one or more mounting ribs 5 on the inside of the scaffold 4 serves. The support incisions 22 have a trapezoidal cross section, which increases toward the free axial end side.
  • The teeth 21 of the sprocket 20 enclose the guide section 19 , the opposite of the basic section 18 has a smaller outer diameter. The sprocket 20 with the teeth 21 is integral with the base section 18 formed and has the same diameter as the base portion. The teeth 21 extend axially over a partial length of the guide portion 19 whose overall length is smaller than the axial length of the base section 18 but at least 50% of the length of the base section 18 having. The longitudinal struts of the guide section 19 are located in the circumferential direction in height of the support incisions 22 that form counter-supporting elements in relation to the mounting ribs. In installation position extend the longitudinal struts of the guide section 19 parallel and radially inward offset to the mounting ribs 5 on the scaffold 4 ,
  • On the sprocket 20 axially opposite end face are at the base portion 18 locking elements 23 arranged, which serve for locking with the filter housing. About the circumference are evenly distributed four locking elements 23 arranged in one piece with the base section 18 of the support dome 14 are formed.
  • In 7 is a filter device 11 with a filter element 1 and a support dome 14 according to 6 shown, 8th shows a section enlargement in the region of the support dome, which protrudes into the interior of the filter element, and 9 a section through the filter device transverse to the longitudinal axis. The basic structure of the filter device 11 equals that of 5 , so that reference is made to the description there. However, different is the structure of the support dome 14 and the scaffold 4 that according to the 7 to 9 distributed over the circumference a plurality of mounting ribs 5 which extend in the axial direction and radially inwardly project furthest. The mounting ribs 5 are integral with the scaffold 4 are formed and located on the radial inside of the scaffold. The mounting ribs 5 have a smaller total axial length than the scaffold 4 , the mounting ribs 5 have at both end faces a distance to the end faces of the scaffold and thus also to the end plates of the filter element 1 on.
  • The filter housing 12 facing end face of the mounting ribs 5 forms the support surface between two teeth 21 in the support incision 22 on the support dome 14 protrudes.
  • The front sides of the mounting ribs 5 are part of a circumferential sprocket on the scaffold inside, in the sprocket 29 on the support dome 14 intervenes. The front sides of the mounting ribs engage in the support incisions 22 between the teeth of the sprocket 20 on the support dome 14 one. Conversely, the tooth tips of the ring gear protrude 20 on the support dome 14 in the spaces between adjacent mounting ribs 5 of the sprocket on the inside of the scaffold 4 one.
  • The support dome 14 is located axially completely within the filter element 1 , The drain neck 15 with which the support dome 14 about his locking elements 23 connected, protrudes into the central opening 70 in the lower end disc 7 of the filter element 1 one.
  • As 9 in addition, refer to the filter media body 2 of the filter element 1 designed as a pleated filter.
  • 10 shows an inoperable filter device 11 for liquid filtration with a filter housing 12 with a support dome 14 according to 6 , The filter element 1 with the two individual elongated support ribs 5 can not completely in the filter housing 12 be used, since the frontal support surfaces 6 at the mounting ribs 5 at the front edge of the support dome 14 support. The screw connection between the lid 13 and filter housing 12 can not be made, so commissioning of the filter device 11 with the mismatched filter element 1 not possible.
  • QUOTES INCLUDE IN THE DESCRIPTION
  • This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
  • Cited patent literature
    • EP 1702663 A1 [0002]

Claims (22)

  1. Filter element with a hollow cylindrical, radially flow-through filter medium body ( 2 ), on the inside of a scaffold ( 4 ) is arranged, and with at least one at an end face of the filter medium body ( 2 ) arranged end plate ( 7 . 8th ), wherein at least one end plate ( 7 . 8th ) via a central opening ( 70 ), characterized in that the scaffold ( 4 ) Carrier at least one opposite the scaffold ( 4 ) radially inwardly projecting mounting rib ( 5 ), wherein the mounting rib ( 5 ) extends radially inward than a boundary of the opening ( 70 ) in the end plate ( 7 ), and wherein a front side of the mounting rib ( 5 ) a support surface ( 6 ) for one through the central opening ( 70 ) supporting dome ( 14 ).
  2. Filter element according to claim 1, characterized in that distributed over the circumference several mounting ribs ( 5 ) on the scaffold ( 4 ) are arranged.
  3. Filter element according to claim 2, characterized in that the end faces of the mounting ribs ( 5 ) Are part of a circumferential sprocket on the support frame inside, between two mounting ribs ( 5 ) a space for receiving a Gegenabstützelement ( 22 ) on the supporting dome ( 14 ) is formed.
  4. Filter element according to one of claims 1 to 3, characterized in that the support surface ( 6 ) forming end face of the mounting rib ( 5 ) axially spaced from the end face of the filter element ( 1 ) is arranged.
  5. Filter element according to one of claims 1 to 4, characterized in that at least one end plate ( 7 . 8th ) Carrier of a sealing ring ( 9 ).
  6. Filter element according to one of claims 1 to 5, characterized in that the mounting rib ( 5 ) along an axially extending longitudinal strut of the scaffold ( 4 ) runs.
  7. Supporting dome for a filter element according to one of claims 1 to 6, characterized in that the wall of the supporting dome ( 14 ) is formed as a grid structure.
  8. Abstützdom according to claim 7, characterized in that the Abstützdom ( 14 ) with a circumferential sprocket ( 20 ), wherein between each two adjacent teeth ( 21 ) a supporting incision ( 22 ) is formed, in which the Einbaurippe ( 5 ) protrudes.
  9. Supporting dome according to claim 7 or 8, characterized in that at one end face of the supporting dome ( 14 ) at least one counter-supporting element ( 22 ) is arranged, which with the front side ( 6 ) of the mounting rib ( 5 ) corresponds.
  10. Supporting dome according to claim 9, characterized in that the supporting dome ( 14 ) a basic section ( 18 ), the carrier of the at least one counter-supporting element ( 22 ), and an axially adjoining guide section (FIG. 19 ), which is in contact with the mounting rib ( 5 ) and radially inside the counter-support element ( 22 ) or limiting walls of the Gegenabstützelements ( 22 ) is arranged.
  11. Supporting dome according to claim 10, characterized in that the axially extended guide portion ( 19 ) is cylindrical or conical.
  12. Supporting dome according to claim 10 or 11, characterized in that the wall of the axially extended guide portion ( 19 ) is formed as a grid structure.
  13. Supporting dome according to claim 12, characterized in that the lattice structure of the axially extended guide section (FIG . 19 ) Axial struts, in the circumferential direction in the amount of Gegenabstützelemente ( 22 ).
  14. Supporting dome according to one of claims 10 to 13, characterized in that the axial length of the guide portion ( 19 ) at least half the axial length of the base section ( 18 ) is.
  15. Supporting dome according to one of claims 7 to 14, characterized in that at one end face of the supporting dome ( 14 ) Locking elements ( 23 ) for latching with a filter housing ( 12 ) are arranged.
  16. Filter device with a filter element ( 1 ) according to one of claims 1 to 6 and with a supporting dome ( 14 ) according to one of claims 7 to 15, with a filter housing ( 12 ) and a pot-shaped housing cover ( 13 ), in which the filter element ( 1 ) is recorded.
  17. Filter device according to claim 16, characterized in that several mounting ribs ( 5 ) on the scaffold ( 4 ) of the filter element ( 1 ) and a plurality of counter-supporting elements ( 22 ) on an end face of the support dome ( 14 ) are arranged.
  18. Filter device with a filter element ( 1 ) according to one of claims 1 to 6, with a filter housing ( 12 ) and a pot-shaped housing cover ( 13 ), in which the filter element ( 1 ) and which is connected via a connecting device to the filter housing ( 12 ) connected is.
  19. Filter device with a filter element ( 1 ) with a hollow cylindrical, radially flow-through filter medium body ( 2 ), on the inside of a scaffold ( 4 ) is arranged, and with at least one at an end face of the filter medium body ( 2 ) arranged end plate ( 7 . 8th ), wherein at least one end plate ( 7 . 8th ) via a central opening ( 70 ), with a filter housing ( 12 ) and with a pot-shaped housing cover ( 13 ), in which the filter element ( 1 ), and via a connecting device with the filter housing ( 12 ), characterized in that in the filter housing ( 12 ) a support dome ( 14 ), in particular according to one of claims 7 to 15, which passes through the opening ( 70 ) in the end plate ( 7 ) into the scaffold ( 4 ) in the filter element ( 1 ) protrudes.
  20. Filter device according to one of claims 18 or 19, characterized in that the connecting device as a screw ( 16 ) is executed.
  21. Filter device according to one of claims 18 to 20, characterized in that the supporting dome ( 14 ) on a coaxial to the filter element ( 1 ) arranged drain neck ( 15 ) in the filter housing ( 12 ) is seated.
  22. A kit comprising a first filter device according to claim 18 and a second filter device according to claim 19 having a first filter element ( 1 ) according to one of claims 1 to 6 with at least one mounting rib ( 5 ), and with a second filter element without Einbaurippe ( 5 ), wherein the filter element ( 1 ) with mounting rib ( 5 ) in the filter housing ( 12 ) without supporting dome ( 14 ) of the first filter device, and wherein the second filter element ( 1 ) without mounting ribs ( 5 ) in the filter housing ( 12 ) with supporting dome ( 14 ) of the second filter device is received.
DE102015008873.4A 2014-08-05 2015-07-14 Filter element with a hollow cylindrical filter medium body and filter device Pending DE102015008873A1 (en)

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DE102014011392 2014-08-05
DE102015008873.4A DE102015008873A1 (en) 2014-08-05 2015-07-14 Filter element with a hollow cylindrical filter medium body and filter device

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Publication number Priority date Publication date Assignee Title
DE102015000070A1 (en) * 2015-01-12 2016-07-14 Mann + Hummel Gmbh Replacement filter of a filter device for fluid, filter device and filter head of a filter device

Citations (1)

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EP1702663A1 (en) 2005-03-08 2006-09-20 Mann + Hummel GmbH Endcap for a filter media

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GB2287199B (en) * 1994-03-11 1997-10-08 Ac Delco Systems Overseas Corp Filter assembly
DE19547664B4 (en) * 1995-12-20 2005-11-10 Mahle Filtersysteme Gmbh Support body for a hollow cylindrical filter element
DE10038412A1 (en) * 2000-08-07 2002-02-21 Mann & Hummel Filter Filter element with a filter medium applied to a support body
DE10354400A1 (en) * 2003-03-14 2004-09-23 Mann + Hummel Gmbh Air filter for IC engine comprises cylindrical filter insert, filter medium being held at one end by plate with axial gripping components and at opposite end by hollow cylindrical collar with concentric sealing ring
DE202005014451U1 (en) 2005-09-12 2007-02-01 Mann + Hummel Gmbh Fuel filter for IC engines contains filter element separating clean chamber from contaminated chamber, channel at right angles to outlet tube connecting two chambers, in which porous filter is mounted so that it forms seal with its wall
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CN105327539A (en) 2016-02-17
US20160038861A1 (en) 2016-02-11
US10413849B2 (en) 2019-09-17
CN105327539B (en) 2020-03-10

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